Systems and methods for providing electrical signals to electrical devices within an interior cabin of a vehicle

ABSTRACT

A vehicle include an interior cabin including a plurality of structural components, a plurality of electrical devices within the interior cabin, a power supply, and an electrical signal distribution system mounted to at least one of the plurality of structural components and electrically coupled to the power supply and the plurality of electrical devices. The electrical signal distribution system includes a printed circuit board (PCB), and a plurality of outlets coupled to the PCB. The plurality of outlets electrically couple to the plurality of electrical devices. The electrical signal distribution system provides electrical signals to the plurality of electrical devices.

FIELD OF EMBODIMENTS OF THE DISCLOSURE

Embodiments of the present disclosure generally relate to interiorcabins within vehicles, such as commercial aircraft, and, moreparticularly, to systems and methods for providing electrical signals(such as power signals and data signals) to electrical devices within aninterior cabin of a vehicle.

BACKGROUND OF THE DISCLOSURE

Commercial aircraft typically include an interior cabin that may bedivided into numerous sections. A cockpit is generally separated from apassenger cabin, which may include a first class section, a businessclass section, and a coach section. The passenger cabin may also includeone or more work areas for flight personnel, such as galleys, which mayinclude food and beverage storage structures. One or more aisles passthrough the passenger cabin and connect each of the passenger sectionsto one or more paths to one or more doors of the aircraft.

Overhead stowage bins are typically positioned above rows of seatswithin a commercial aircraft. Each overhead stowage bin is configured tobe moved between an open position and a closed position. In the openposition, passengers may place carry-on luggage within a moveable bin orbucket. Before the aircraft leaves a terminal, flight attendants ensurethat each stowage bin is securely closed.

A typical commercial aircraft includes numerous electrical componentswithin an interior cabin. For example, a passenger service unit (PSU) isassociated with each seat, row of seats, or set of seats within aninterior cabin of a commercial aircraft. The PSU typically includes areading light and an oxygen supply, for example.

A PSU trough or channel extends over a length of an interior cabin of anaircraft underneath the stowbins. In order to supply power to the PSUs,numerous controllers are provided within the PSU trough. A power supplycouples to each controller through a wire bundle. In order to providepower and control signals to each of the PSUs, separate and distinctwire bundles connect each controller to an associated PSU. Typically,the PSU trough is occupied by numerous wire bundles.

During a manufacturing process of an aircraft, designers specifyparticular controller locations in a drawing, for example, andinstallers interpret the drawing in order to find the separate anddistinct controllers, and individually connect the controllers to thepower supplies through the wired bundles. Further, the installers alsoconnect the individual PSUs to the controllers through the separate anddistinct wire bundles.

Moreover, wire bundles that are not in use are typically coiled andsecured within the PSU trough, thereby occupying space therein. Further,the unused wire bundles are reviewed and distinguished by the installersto ensure whether each is in use or not.

Additionally, depending on a desired number of PSUs and/or otherelectrical components within an interior cabin, the various electricalcomponents are first mapped. That is, installers determine the locationsof power supplies, the locations of wire bundles, the locations ofparticular electrical components to connect to wire bundles, and thelike. Also, in many instances, an installer may need to splice a wirebundle and connect it a particular electrical component, such as a lightof a PSU. Overall, the process of connecting PSUs to controllers andpower is highly variable, long, cumbersome, labor intensive, expensive,and not easily reconfigurable.

SUMMARY OF THE DISCLOSURE

A need exists for an efficient and simpler system and method ofelectrically coupling electrical devices onboard a vehicle to a powersource and/or a data source. A need exists for a system and method ofreducing wiring (and therefore weight and cost) onboard a vehicle.

With those needs in mind, certain embodiments of the present disclosureprovide a vehicle that includes an interior cabin including a pluralityof structural components, a plurality of electrical devices within theinterior cabin, a power supply, and an electrical signal distributionsystem mounted to at least one of the plurality of structural componentsand electrically coupled to the power supply and the plurality ofelectrical devices. The electrical signal distribution system includes aprinted circuit board (PCB), and a plurality of outlets coupled to thePCB. The plurality of outlets electrically couple to the plurality ofelectrical devices. The electrical signal distribution system provideselectrical signals to the plurality of electrical devices.

In at least one embodiment, the PCB is a multi-layer PCB including apower layer coupled to at least one data layer. The PCB may also includefirst and second ground layers. The power layer and the data layer(s)may be sandwiched between the first and second ground layers. At leastone of the plurality of outlets may include an electrical connectormounted on the PCB.

The plurality of structural components may include a portion of any of astowage bin assembly (including a bin strongback), a rail of a passengerservice unit (PSU), a PSU trough, a floor member of the interior cabin,a ceiling of the interior cabin, and/or a wall member of the interiorcabin. In at least one embodiment, the electrical signal distributionsystem extends along at least a portion of a length of the interiorcabin. The PCB may be parallel with a central longitudinal axis of theinterior cabin.

The outlets may be regularly spaced over a length of the PCB. Theelectrical signals may be power signals and/or data signals, whetherdigital or analog.

In at least one embodiment, the vehicle includes a master control unitin communication with the plurality of electrical devices. Each of theplurality of electrical devices may include a control unit. The mastercontrol unit is in communication with the control unit of each of theplurality of electrical devices. The master control unit automaticallydetermines a location of each of the plurality of electrical devices inresponse to each of the plurality of electrical devices electricallycoupling to the electrical signal distribution system.

At least two of the plurality of outlets may include different keys (forexample, structural features that permit mating with a certain type ofreciprocal feature) or coding (for example, color coding, alphanumericcoding, and/or the like) that are associated with different types ofelectrical devices.

The plurality of electrical devices may include a passenger service unitincluding an overhead light and an oxygen supply system, a lightingassembly, a speaker, a microphone, a display, one or more sensors, anelectronic latch of a stowage bin assembly, and/or various other typesof electrical devices onboard a vehicle.

Certain embodiments of the present disclosure provide a method ofproviding electrical signals to a plurality of electrical devices withinan interior cabin of a vehicle. The method includes providing a printedcircuit board (PCB) of an electrical signal distribution system,coupling a plurality of outlets to the PCB, mounting the electricalsignal distribution system to at least one of a plurality of structuralcomponents within the interior cabin of the vehicle, electricallycoupling the electrical signal distribution system to a power supplywithin the interior cabin of the vehicle, electrically coupling theplurality of outlets to the plurality of electrical devices, andproviding the electrical signals to the plurality of electrical devicesby way of the electrical signal distribution system.

Certain embodiments of the present disclosure provide a method ofmanufacturing an interior cabin of a vehicle. The method includesproviding a printed circuit board (PCB) of an electrical signaldistribution system, coupling a plurality of outlets to the PCB,mounting the electrical signal distribution system to at least one of aplurality of structural components within the interior cabin of thevehicle, electrically coupling the electrical signal distribution systemto a power supply within the interior cabin of the vehicle, electricallycoupling the plurality of outlets to the plurality of electricaldevices, electrically uncoupling at least a portion of the plurality ofelectrical devices from the plurality of outlets, reconfiguring theportion of the plurality of electrical devices within the interiorcabin, and electrically coupling the at least a portion of theelectrical devices to different ones of the plurality of outlets withinthe interior cabin.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a front perspective view of an aircraft, according toan embodiment of the present disclosure.

FIG. 2A illustrates a top plan view of an interior cabin of an aircraft,according to an embodiment of the present disclosure.

FIG. 2B illustrates a top plan view of an interior cabin of an aircraft,according to an embodiment of the present disclosure.

FIG. 3 illustrates an interior perspective view of an interior cabin ofan aircraft, according to an embodiment of the present disclosure.

FIG. 4 illustrates a front perspective view of a stowage bin assembly ina closed position within an interior cabin, according to an embodimentof the present disclosure.

FIG. 5 illustrates a front perspective view of a stowage bin assembly inan open position within an interior cabin, according to an embodiment ofthe present disclosure.

FIG. 6 illustrates a block diagram of an electrical signal distributionsystem within an interior cabin of a vehicle, according to an embodimentof the present disclosure.

FIG. 7 illustrates a simplified transverse cross-sectional view of aportion of an electrical signal distribution system, according to anembodiment of the present disclosure.

FIG. 8 illustrates a simplified transverse cross-sectional view of aportion of an electrical signal distribution system, according to anembodiment of the present disclosure.

FIG. 9 illustrates a simplified schematic diagram of electrical devicescoupled to an electrical signal distribution system, according to anembodiment of the present disclosure.

FIG. 10 illustrates a schematic diagram of a portion of an interiorcabin of a vehicle, according to an embodiment of the presentdisclosure.

FIG. 11 illustrates a front perspective view of an electrical signaldistribution system mounted on a passenger service unit trough,according to an embodiment of the present disclosure.

FIG. 12 illustrates a lateral perspective view of a row of seats withinan interior cabin of a vehicle, according to an embodiment of thepresent disclosure.

FIG. 13 illustrates a flow chart of a method of electrically couplingelectrical devices to an electrical signal distribution system within aninterior cabin of a vehicle, according to an embodiment of the presentdisclosure.

DETAILED DESCRIPTION OF THE DISCLOSURE

The foregoing summary, as well as the following detailed description ofcertain embodiments will be better understood when read in conjunctionwith the appended drawings. As used herein, an element or step recitedin the singular and preceded by the word “a” or “an” should beunderstood as not necessarily excluding the plural of the elements orsteps. Further, references to “one embodiment” are not intended to beinterpreted as excluding the existence of additional embodiments thatalso incorporate the recited features. Moreover, unless explicitlystated to the contrary, embodiments “comprising” or “having” an elementor a plurality of elements having a particular property may includeadditional elements not having that property.

Certain embodiments of the present disclosure provide an electricalsignal distribution system that is configured to provide electricalsignal communication with various electrical devices onboard a vehicle.The system is configured to communicate electrical signals, such aspower signals and data signals, with respect to the various electricaldevices.

The electrical signal distribution system includes a multi-layeredprinted circuit board (PCB) that is configured to deliver electricalsignals (such as power signals and data signals) to a plurality ofelectrical devices having a plurality of outlets (such as ports,connectors, and/or the like), instead of through point-to-point wiringwith splices (as in prior known systems). In at least one embodiment,the PCB includes multiple layers. Top and bottom layers may be groundlayers that shield any noise that may be generated from signals withinthe inner layers of the PCB. Power, data, and discrete signals are runon the inner layers of the multi-layer PCB. Data signals may be brokenat each outlet and re-connected either by an externally connectedcontinuity connector that caps unused outlets, or by electronic devicesconnected to data outlets. By integrating the PCB power and datadelivery system with commodities before they are brought onto a vehicle,embodiments of the present disclosure reduce factory installation timeby eliminating or otherwise reducing the need to custom design and/orinstall wire bundles at a late stage in manufacturing of an airplane.

Embodiments of the present disclosure eliminate, minimize, or otherwisereduce a need for custom wire bundles or standard bundles that requireunique drawings for coiling and stowing excess wire. Further,embodiments of the present disclosure eliminate, minimize, or otherwisereduce a need for splices and associated hardware.

Embodiments of the present disclosure provide an electrical distributionsystem that includes a PCB that is configured to deliver electricalsignals (such as, power signals and/or data signals) to a plurality ofelectrical devices onboard a vehicle. The PCB eliminates wire splices bymaking connections directly on the PCB, such as through outlets coupledthereto. The PCB provides a powered strip that includes outlets (such asports, connectors, and/or the like) at intervals (for example, every 6inches) to service a configuration density of electrical devices. ThePCB includes power, and data signal layers on the inside of board, withground layers on the top and bottom layers to provide shielding fornoise. The PCB may include data lines broken at each outlet. Dataoutlets may be pinned out so that a continuity connector or data deviceis used to complete a data circuit external to the PCB. The electricaldistribution system may be pre-installed on components (for example,strongbacks, PSU troughs, stow bins, underneath a floor member, on orwithin a ceiling structure, or the like).

In at least one embodiment, the electrical signal distribution systemextends over a length of an interior cabin of a vehicle. The electricalsignal distribution system may run parallel to a longitudinal axis of avehicle. The PCB of the electrical distribution system is coupled to astructure within the aircraft, such as to a stowbin, a strongback, a PSUtrough, a PSU rail, underneath a floor member, within or otherwisecoupled to a ceiling, and/or the like.

Embodiments of the present disclosure reduce the labor time, effort, andcomplexity of wiring a vehicle, such as a commercial aircraft. Further,as compared to large wire bundles, the electrical signal distributionsystem is substantially lighter, and allows various electrical devicesto be reconfigured onboard an interior cabin. Further, the electricalsignal distribution allows for various electrical devices to be quicklyand easily set up and maintained within an interior cabin.

Certain embodiments of the present disclosure provide an electricalsignal distribution system that includes a longitudinal PCB thatprovides an electrical signal strip having a plurality of outlets. ThePCB is substantially aligned with a structural component within aninterior cabin of a vehicle. The structural component may be one or morestowage bin assemblies, floor member structure (such as coupled toand/or between seat tracks), a ceiling, wall members, and/or the like.

Certain embodiments of the present disclosure provide a method ofconfiguring an aircraft with a plurality of features. The methodincludes building a longitudinal array of a plurality electrical signaloutlets, and coupling the longitudinal array to a longitudinal structurewithin an interior cabin of the aircraft.

Certain embodiments of the present disclosure provide an aircraft cabinrecording device (for example, a flight deck handset or a cabinattendant handset) that includes one or more microphones that plug in toan array of outlets. The microphone(s) are controllable by a controlunit onboard the aircraft.

FIG. 1 illustrates a front perspective view of a vehicle, such as anaircraft 10 (or aircraft assembly), according to an embodiment of thepresent disclosure. The aircraft 10 includes a propulsion system 12 thatmay include two turbofan engines 14, for example. Optionally, thepropulsion system 12 may include more engines 14 than shown. The engines14 are carried by wings 16 of the aircraft 10. In other embodiments, theengines 14 may be carried by a fuselage 18 and/or an empennage 20. Theempennage 20 may also support horizontal stabilizers 22 and a verticalstabilizer 24.

The fuselage 18 of the aircraft 10 defines an interior cabin, which mayinclude a cockpit, one or more work sections (for example, galleys,personnel carry-on baggage areas, and the like), one or more passengersections (for example, first class, business class, and coach sections),and an aft section. Each of the sections may be separated by a cabintransition area, which may include one or more class divider assemblies.Overhead stowage bin assemblies may be positioned throughout theinterior cabin.

Alternatively, instead of an aircraft, embodiments of the presentdisclosure may be used with various other vehicles, such as automobiles,buses, locomotives and train cars, seacraft, spacecraft, and the like.

FIG. 2A illustrates a top plan view of an interior cabin 30 of anaircraft, according to an embodiment of the present disclosure. Theinterior cabin 30 may be within a fuselage 32 of the aircraft. Forexample, one or more fuselage wall members may define the interior cabin30. The interior cabin 30 includes multiple sections, including a frontsection 33, a first class section 34, a business class section 36, afront galley station 38, an expanded economy or coach section 40, astandard economy or coach section 42, and an aft section 44, which mayinclude multiple lavatories and galley stations. It is to be understoodthat the interior cabin 30 may include more or less sections than shown.For example, the interior cabin 30 may not include a first classsection, and may include more or less galley stations than shown. Eachof the sections may be separated by a cabin transition area 46, whichmay include class divider assemblies between aisles 48.

As shown in FIG. 2A, the interior cabin 30 includes two aisles 50 and 52that lead to the aft section 44. Optionally, the interior cabin 30 mayhave less or more aisles than shown. For example, the interior cabin 30may include a single aisle that extends through the center of theinterior cabin 30 that leads to the aft section 44.

One or more electrical signal distribution systems 200 are secured toone or more structural components within the interior cabin 30. Asshown, each electrical signal distribution system 200 may run parallelwith a longitudinal axis 47 of the interior cabin 30. Optionally, theelectrical signal distribution systems 200 may not be parallel to thelongitudinal axis 47. For example, at least one electrical signaldistribution system 200 may span across the interior cabin 30 such thatit is perpendicular to the longitudinal axis 47. The interior cabin 30may include more or less electrical distribution systems 200 than shown.For example, an electrical distribution system 200 may be positionedover each longitudinal section of seats onboard an aircraft.

The electrical signal distribution systems 200 may span from a fore orfront section 33 to the aft section 44. The electrical signaldistribution systems 200 may span an entire length of the interior cabin30. Optionally, the electrical signal distribution systems 200 may spanless than an entire length of the interior cabin 30.

The electrical signal distribution systems 200 may be secured to variousstructural components within the interior cabin 30. For example, theelectrical signal distribution systems 200 may be securely mounted tostrongbacks, PSU troughs, stowbins, passenger service unit (PSU) rails,floor member structure, ceiling structure, wall member structure, and/orthe like. The electrical signal distribution systems 200 are configuredto provide electrical signals, such as power signals and/or datasignals, to various electrical devices within the interior cabin, asdescribed below.

FIG. 2B illustrates a top plan view of an interior cabin 80 of anaircraft, according to an embodiment of the present disclosure. Theinterior cabin 80 may be within a fuselage 81 of the aircraft. Forexample, one or more fuselage wall members may define the interior cabin80. The interior cabin 80 includes multiple sections, including a maincabin 82 having passenger seats 83, and an aft section 85 behind themain cabin 82. It is to be understood that the interior cabin 80 mayinclude more or less sections than shown.

The interior cabin 80 may include a single aisle 84 that leads to theaft section 85. The single aisle 84 may extend through the center of theinterior cabin 80 that leads to the aft section 85. For example, thesingle aisle 84 may be coaxially aligned with a central longitudinalplane 86 of the interior cabin 80. One or more electrical signaldistribution systems 200 are secured to structural components within theinterior cabin 80.

FIG. 3 illustrates an interior perspective view of an interior cabin 100of an aircraft, according to an embodiment of the present disclosure.The interior cabin 100 includes outboard wall members 102 and a ceiling104, which may include a plurality of ceiling panels. Windows 106 may beformed within the outboard wall members 102. A floor member 108 supportsrows of seats 110. As shown in FIG. 3, a row 112 may include two seats110 on either side of an aisle 113. However, the row 112 may includemore or less seats 110 than shown. Additionally, the interior cabin 100may include more aisles than shown.

Electrical devices such as PSUs 114 are secured between an outboard wallmember 102 and the ceiling 104 on either side of the aisle 113. The PSUs114 extend between a front end and rear end of the interior cabin 100.For example, a PSU 114 may be positioned over each seat 110 within a row112. Each PSU 114 may include a housing 116 that generally containspassenger air outlets, reading lights, an oxygen supply system (such asan oxygen bag drop panel), an attendant call button, and other suchcontrols over each seat 110 (or groups of seats) within a row 112.

Overhead stowage bin assemblies 118 are secured to the structureproximate to the ceiling 104 and/or the outboard wall member 102 aboveand inboard from the PSU 114 on either side of the aisle 113. Theoverhead stowage bin assemblies 118 are secured over the seats 110. Theoverhead stowage bin assemblies 118 extend between the front and rearend of the interior cabin 100. Each stowage bin assembly 118 may includea pivot bin or bucket 120 pivotally secured to a strongback (hidden fromview in FIG. 3). The overhead stowage bin assemblies 118 may bepositioned above and inboard from lower surfaces of the PSUs 114. Theoverhead stowage bin assemblies 118 are configured to be pivoted open inorder to receive passenger carry-on baggage and personal items, forexample.

As used herein, the term “outboard” means a position that is furtheraway from a central longitudinal plane 122 of the interior cabin 100 ascompared to another component. The term “inboard” means a position thatis closer to the central longitudinal plane 122 of the interior cabin100 as compared to another component. For example, a lower surface of aPSU 114 may be outboard in relation to a stowage bin assembly 118.

At least one electrical signal distribution system 200 (shown in FIGS.2A and 2B, but hidden from view in FIG. 3) extends over a length of theinterior cabin 100 and runs parallel with the longitudinal plane 122.For example, an electrical signal distribution system 200 may be mountedto strongbacks of the stowage bin assemblies 118. Optionally, theelectrical signal distribution system 200 may be mounted to PSU railsthat secure the PSUs 114 in position. As another example, the electricalsignal distribution system 200 may be mounted to floor member or ceilingstructure.

Electrical devices 125 may be mounted on the buckets 120 of the stowagebin assemblies 118. As shown, the electrical devices 125 may be securedto exterior surfaces of the buckets 120. Optionally, the electricaldevices 125 may be secured to interior surfaces of the buckets 120. Inat least one embodiment, the electrical devices 125 may be embeddedwithin the buckets 120. The electrical device 125 may be one or more ofan electric latch or lock, a speaker, a lighting assembly (such as oneor more light emitting diodes), a monitor (such as a video screen and/ortouchscreen), a fan, one or more sensors, and/or the like. Electricaldevices may also be installed within a PSU trough, adjacent to readinglight panels, for example.

FIG. 4 illustrates a front perspective view of a stowage bin assembly118 in a closed position within the interior cabin 100, according to anembodiment of the present disclosure. The stowage bin assembly 118includes a bucket 120 having a front panel 126 connected to forward andaft end panels (hidden from view in FIG. 4). As shown, the front panel126 may be an arcuate panel having a curved outer surface that curvesdownwardly toward the outboard wall member 102. As such, a top portion128 of the front panel 126 is inboard in relation to a lower portion130. The electrical device 125 may be secured to and/or embedded withinthe front panel 126.

FIG. 5 illustrates a front perspective view of the stowage bin assembly118 in an open position within the interior cabin 100, according to anembodiment of the present disclosure. As shown, the front panel 126 issecured to a forward end panel 132 and an aft end panel 134, which maygenerally be opposed and parallel to one another. The front panel 126and the end panels 132 and 134 may also connect to a bottom panel 136.The bottom panel 136 may be an inwardly curved portion of the frontpanel 126, for example. A closeout bracket 138 may span between the endpanels 132 and 134 and provide a rigid bracing support therebetween. Thefront panel 126 may be thicker than the end panels 132 and 134, as thefront panel 126 is configured to directly support a weight of overheadbags. As such, the front panel 126 may have increased thickness in orderto provide additional support strength and rigidity.

A baggage retaining chamber 140 is defined between the front panel 126,the end panels 132 and 134, and the bottom panel 136. The baggageretaining chamber 140 is configured to receive baggage 142 when thestowage bin assembly 118 is in the open position.

The end panels 132 and 134 are each pivotally secured to fixed panels144, such as fixed panels of a strongback. That is, the fixed panels 144may be part of a strongback within the interior cabin 100.

FIG. 6 illustrates a block diagram of an electrical signal distributionsystem 200 within an interior cabin 202 of a vehicle 204, according toan embodiment of the present disclosure. The electrical signaldistribution system 200 is securely mounted to a structural component206 within the interior cabin 202. Alternatively, the electrical signaldistribution system 200 may be integrally formed as part of thestructural component 206 within the interior cabin 202. The structuralcomponent 206 may extend over a length of the interior cabin 202. In atleast one embodiment, the structural component 206 is a strongback of astowage bin assembly. In at least one embodiment, the structuralcomponent 206 is a PSU trough under the stowage bin assembly. In atleast one embodiment, the structural component 206 is floor memberstructure within the interior cabin 202. For example, the structuralcomponent 206 may be a panel coupled to and/or between seat tracks ofthe floor member. In at least one embodiment, the structural component206 is a longitudinal ceiling beam that extends over a length of theinterior cabin 202. As another example, the structural component 206 maybe an interior fuselage wall member.

The electrical signal distribution system 200 includes a printed circuitboard (PCB) 208. In at least one embodiment, the PCB 208 is amultilayered PCB including one or more data layers, one or more powerlayers, and ground layers that surround the data layer(s). In at leastone embodiment, the ground layers may surround both the power layer(s)and the data layer(s).

A plurality of outlets 210 are mounted to the PCB 208. For example, theplurality of outlets 210 may be formed in the PCB 208, and provide inputports. As another example, the plurality of outlets 210 may includeelectrical connectors mounted on the PCB 208. For example, theelectrical connectors may be electrical plugs that are configured toremovably couple to reciprocal receptacles, or vice versa.

The outlets 210 may be regularly spaced over a length of the PCB 208.For example, neighboring outlets 210 (that is, outlets 210 that areclosest to one another) may be separated by a distance of 6 inches.Optionally, neighboring outlets 210 may be separated by a distance thatis greater or less than 6 inches. The PCB 208 may include more or lessoutlets 210 than shown.

Electrical devices 212 within the interior cabin 202 electrically coupleto the electrical signal distribution system 200 via the outlets 210.For example, each electrical device 212 may include an input 214 thatelectrically connects to a respective outlet 210. The input 214 mayinclude a wire, cable, or the like that has a reciprocal connectionmember at a distal end. The reciprocal connection member (such as a plugor receptacle) removably couples to an outlet 210.

Unused outlets 210 may be capped with reciprocal connector terminationcaps 216. Optionally, the unused outlets 210 may not be capped.

The electrical devices 212 may be various devices onboard the vehicle204. For example, the electrical devices 212 may be or include PSUs (orcomponents thereof), lights, speakers, microphones, video monitors,charging devices (such as may be used to charge smart phones), and/orthe like.

The outlets 210 may be electrical connectors having a receptacle that isconfigured to receive a reciprocal plug (or vice versa). When not inuse, the termination caps 216 may be positioned over the receptacles.Connections 226 and 228 (shown in FIGS. 7 and 8) connect the receptaclesto the layers of the PCB 208.

The electrical signal distribution system 200 may include more or lessoutlets 210 than shown. Further, the outlets 210 may include keyedinterfaces, and/or coding to indicate the type of electrical device thatis to be mated thereto, as described above.

FIG. 7 illustrates a simplified transverse cross-sectional view of aportion of an electrical signal distribution system 200, according to anembodiment of the present disclosure. The electrical signal distributionsystem 200 includes the PCB 208, which may be a multi-layered PCB. ThePCB 208 may include a power layer 218 overlaying a data layer 220.Optionally, the data layer 220 may overlay the power layer 218. A groundlayer 222 is secured over the power layer 218, while another groundlayer 224 is secured beneath the data layer 220.

The power layer 218 and the data layer 220 each include a substrate(such as formed of PCB material) that supports signal traces (such ascopper traces), vias, through-holes, and/or the like that allowelectrical signals to be transmitted therethrough and to an outlet 210.The outlet 210 may include a power connection (such as a pin, contacttail, lead, or the like) 226 that electrically connects to the powerlayer 218, and a data connection 228 that connects to the data layer220. As such, power signals may be transferred from the power layer 218to the outlet 210 (and ultimately to an attached electrical device 212,shown in FIG. 6), and data signals may be transferred from the datalayer 220 to the outlet 218 (and ultimately to the attached electricaldevice 212).

As shown, the data layer 220 is sandwiched between the opposing groundlayers 222 and 224. The ground layers 222 and 224 provide shields thatprevent or otherwise reduce signal noise, interference, and the likefrom propagating out of the PCB 208. The distances between the groundlayers 222 and 224 and the data layer 220 may be spaced to optimizeimpedance matching of data transmission lines of the data layer 220. Inat least one embodiment, the ground layers 222 and 224 are part of asingle ground structure that encapsulates the data layer 220 therein.The power layer 218 may be positioned over the ground layer 222, orunder the ground layer 224.

Alternatively, the power layer 218 and the data layer 220 may besandwiched between the opposing ground layers 222 and 224. In at leastone embodiment, the ground layers 222 and 224 may be part of a singleground structure that encapsulates the power layer 218 and the datalayer 220 therein

The power layer 218 is configured to provide power signals to theelectrical devices 212 (shown in FIG. 6) that are coupled to the outlets210. The data layer 220 is configured to provide data signals to theelectrical devices 212 that are coupled to the outlets 210. Theelectrical devices 212 may all be of the same type. In at least oneother embodiment, at least some of the electrical devices 212 may differfrom one another.

FIG. 8 illustrates a simplified transverse cross-sectional view of aportion of an electrical signal distribution system 200, according to anembodiment of the present disclosure. The electrical signal distributionsystem 200 is similar to that shown and described with respect to FIG.7, except that the electrical signal distribution system 200 shown inFIG. 8 includes multiple data layers 220 a and 220 b separated from oneanother by an internal ground layer 223. Optionally, the data layers 220a and 220 b may not be separated by the internal ground layer 223.

The outlets 210 a and 210 b are electrically connected to the powerlayer 218. The outlet 210 a is electrically connected to the data layer220 a, while the outlet 210 b is electrically connected to the datalayer 220 b. The outlets 210 a and 210 b may include keys 230 a and 230b that are each configured to mate with specific types of electricaldevices. For example, the key 230 a may be a specific structuralinterface that is configured to mate with a specific type of electricaldevice, while the key 230 b may be a different specific structuralinterface that is configured to mate with a different specific type ofelectrical device. The data layers 220 a and 220 b may each bespecifically configured for data transmission with separate and distincttypes of electrical devices. The keys 230 a and 230 b allow anindividual to distinguish the particular type of electrical device to bemated with the particular outlet 210 a and 210 b. Moreover, the outlets210 a and 210 b may include distinguishing codes, such as numeric and/oralphabetic codes, phrases, words, colors, and/or the like that allow anindividual to distinguish which type of electrical device is to be matedthereto.

The electrical signal distribution system 200 may include more or lessoutlets having more or less keys than shown. Further, the electricalsignal distribution system 200 may include more data layers and/orground layers than shown.

FIG. 9 illustrates a simplified schematic diagram of electrical devices212 coupled to the electrical signal distribution system 200 (such asany of those described above), according to an embodiment of the presentdisclosure. Each electrical device 212 may include a housing 215 thatcontains or otherwise supports an operative structure 214 incommunication with a control unit 217, such as through one or more wiredor wireless connections. For example, at least one of the electricaldevices 212 may be a PSUs and the operative structure 214 may be anoverhead light. As another example, at least one of the electricaldevices 212 may be a lighting assembly in which the operative structure214 is a light secured to a ceiling, wall member, or floor member. In atleast one other embodiment, an operative structure 214 of at least oneof the electrical devices 212 may be a microphone, a speaker, a videodisplay, one or more sensors, or the like, that is mounted to a wallmember, seat, ceiling, or the like. Alternatively, the electricaldevices 214 may not include their own control units 216 within thehousings 215.

A power supply 300 is coupled to the electrical signal distributionsystem 200. For example, the power supply 300 may be a direct current(DC) or alternating current (AC) power supply within an aircraft. Thepower supply 300 couples to the power layer 218 (shown in FIGS. 7 and 8)of the PCB 208 of the electrical signal distribution system 200, such asthrough a wired connection 302. In at least one embodiment, the wiredconnection 302 includes a distal plug or receptacle that couples to anoutlet of the PCB 208.

The control units 216 are configured to control operation of theelectrical devices 212. Prior known PSUs did not include separate anddistinct control units. Instead, separate and distinct controllers wereconnected to the PSUs through wired bundles, which add weight andcomplexity during a manufacturing process. In contrast, PSUs accordingto an embodiment of the present disclosure, may include their owncontrol units 216, which eliminates the need for separate and distinctcontrollers and wire bundles. While the control units 216 may add weightto the PSUs themselves, the overall weight of a vehicle is decreased,because there is no need to connect separate and distinct controllerswithin a PSU trough to the PSUs through wire bundles.

Moreover, each control unit 217 provides an address that identifies thespecific electrical device 212. As such, the electrical devices 212 maybe removed from one position and located at another position. A mastercontrol unit 304 (such as part of a main computer onboard a vehicle) maybe in communication with each control unit 217 of the electrical devices212 through one or more wired or wireless connections, and/or throughthe electrical signal distribution system 200. In at least oneembodiment, the master control unit 304 may connect to the electricalsignal distribution system 200 through a wired connection, and be ableto communicate with the control units 216 through the electrical signaldistribution system 200. In at least one other embodiment, the mastercontrol unit 304 wirelessly connects to the control units 216, such asthrough IEEE 802.15.4 or IEEE 802.11 (WiFi).

Logical-to-physical mapping is a process of establishing relativepositions of each electrical device 212 within a location, such as aninterior cabin of an aircraft. Both wired and wireless architectures mayuse data traces for logical-to-physical mapping. Each time an electricaldevice 212 is connected to the electrical signal distribution system200, the master control unit 304 detects a configuration mismatch andinitiates logical-to-physical mapping. By way of a physical connectionto the master control unit 304, an asserted input, programming, partselection, and/or the like, the first device in a contiguous array ofdevices is identified as the first unit to derive its relative positionduring logical-to-physical mapping. For wired systems, the contiguouselectrical devices increment a numerical seed originating from themaster control unit 304 as they cascade a token number down a column ofdevices. For wireless systems, the electrical devices have input/outputpairs between contiguous devices using at least one of the data layersas a communication enabling line to sequentially allow each electricaldevice to register its relative position with the master control unitwhen an adjacent device asserts the input pin, having completed its ownregistration. In this manner, the master control unit 304 is able toidentify the exact location of the electrical device 212, for eitherwired or wireless devices, onboard a vehicle, even if the electricaldevice 212 has been moved to a different location.

As used herein, the term “control unit,” “central processing unit,”“CPU,” “computer,” or the like may include any processor-based ormicroprocessor-based system including systems using microcontrollers,reduced instruction set computers (RISC), application specificintegrated circuits (ASICs), logic circuits, and any other circuit orprocessor including hardware, software, or a combination thereof capableof executing the functions described herein. Such are exemplary only,and are thus not intended to limit in any way the definition and/ormeaning of such terms. For example, the control units 216 and the mastercontrol unit 304 may be or include one or more processors that areconfigured to control operations, as described above.

Each of the control units 216 and the master control unit 304 isconfigured to execute a set of instructions that are stored in one ormore data storage units or elements (such as one or more memories), inorder to process data. For example, each of the control units 216 andthe master control unit 304 may include or be coupled to one or morememories. The data storage units may also store data or otherinformation as desired or needed. The data storage units may be in theform of an information source or a physical memory element within aprocessing machine.

The set of instructions may include various commands that instruct eachof the control units 216 and the master control unit 304 as a processingmachine to perform specific operations such as the methods and processesof the various examples of the subject matter described herein. The setof instructions may be in the form of a software program. The softwaremay be in various forms such as system software or application software.Further, the software may be in the form of a collection of separateprograms, a program subset within a larger program, or a portion of aprogram. The software may also include modular programming in the formof object-oriented programming. The processing of input data by theprocessing machine may be in response to user commands, or in responseto results of previous processing, or in response to a request made byanother processing machine.

The diagrams of examples herein may illustrate one or more control orprocessing units, such as the control units 216 and the master controlunit 304. It is to be understood that the processing or control unitsmay represent circuits, circuitry, or portions thereof that may beimplemented as hardware with associated instructions (e.g., softwarestored on a tangible and non-transitory computer readable storagemedium, such as a computer hard drive, ROM, RAM, or the like) thatperform the operations described herein. The hardware may include statemachine circuitry hardwired to perform the functions described herein.Optionally, the hardware may include electronic circuits that includeand/or are connected to one or more logic-based devices, such asmicroprocessors, processors, controllers, or the like. Optionally, eachof the control units 216 and the master control unit 304 may representprocessing circuitry such as one or more of a field programmable gatearray (FPGA), application specific integrated circuit (ASIC),microprocessor(s), and/or the like. The circuits in various examples maybe configured to execute one or more algorithms to perform functionsdescribed herein. The one or more algorithms may include aspects ofexamples disclosed herein, whether or not expressly identified in aflowchart or a method.

As used herein, the terms “software” and “firmware” are interchangeable,and include any computer program stored in a data storage unit (forexample, one or more memories) for execution by a computer, includingRAM memory, ROM memory, EPROM memory, EEPROM memory, and non-volatileRAM (NVRAM) memory. The above data storage unit types are exemplaryonly, and are thus not limiting as to the types of memory usable forstorage of a computer program.

FIG. 10 illustrates a schematic diagram of a portion of an interiorcabin 400 of a vehicle 402, according to an embodiment of the presentdisclosure. The interior cabin 400 includes a plurality of overheadstowage bin assemblies 404 for a plurality of rows 406. A PSU 408 issecured underneath the stowage bin assemblies 404 above each row 406.Each PSU 408 includes an overhead light 410 and an oxygen supply system412.

An electrical signal distribution system 200 may be secured below orotherwise in close proximity to the PSUs 406. For example, theelectrical signal distribution system 200 may be securely mounted to aPSU rail or trough that secures the PSU 406 in position within theinterior cabin 400.

A power supply 414 provides power to the electrical signal distributionsystem 200. In at least one embodiment, the power supply 414 is securedin a crown of the interior cabin 400 above ceiling panels. Each PSU 408is coupled to the electrical signal distribution system 200 throughoutlets 210 (shown in FIGS. 6-9), as described above.

As shown, a PSU trough 420 may include the power supply 414 that couplesto the electrical signal distribution system 200 and a distributionpanel 422. However, the PSU trough 420 is devoid of bulky wire bundlesthat would other separately connect the PSUs 408 to power supplies andseparate and distinct controllers. As explained above with respect toFIG. 9, each PSU 408 may include a control unit 217 that is configuredto control operation of the PSU 408, thereby eliminating the need toconnect the PSUs 408 to separate and distinct controllers through wirebundles.

The electrical signal distribution system 200 may be configured to besecured underneath each stowage bin assembly 406. Adjacent electricaldistribution systems 200 may modularly connect together at ends, therebyallowing an electrical signal distribution system 200 of a desiredlength to be formed.

FIG. 11 illustrates a front perspective view of an electrical signaldistribution system 200 mounted on a PSU trough 420, according to anembodiment of the present disclosure. The PSUs 408 are secured toparallel longitudinal rails 500 positioned below stowage bin assemblies404. The rails 500 are parallel with a longitudinal axis of an interiorcabin.

The PCB 208 of the electrical distribution system 200 may securely mountto the PSU trough 420, such as within a channel therein, throughfasteners, adhesives, and/or the like. In at least one other embodiment,the PCB 208 may secure to a side of the PSU trough 420. In at least oneother embodiment, the PCB 208 may secure underneath to the PSU trough420.

FIG. 12 illustrates a lateral perspective view of a row of seats 700within an interior cabin 702 of a vehicle 704, according to anembodiment of the present disclosure. The interior cabin 702 may includea first electrical signal distribution system 200 a mounted to a floormember 705 of the interior cabin, a second electrical signaldistribution system 200 b mounted to a PSU rail 706 that supports PSUs708 below stowage bin assemblies 710, and a third electrical signaldistribution system 200 c mounted to a ceiling 708 of the interior cabin702. Optionally, the interior cabin 702 may include less than all of theelectrical signal distribution systems 200 a, 200 b, and 200 c.

As shown, the electrical signal distribution systems 200 a, 200 b, and200 c extend along a length of the interior cabin 702. The electricalsignal distribution systems 200 a, 200 b, and 200 c are parallel with acentral longitudinal axis 710 of the interior cabin 702, or at least aportion thereof. Optionally one or more electrical signal distributionsystems may be laterally oriented with respect to the interior cabin702, such that they are perpendicular to the central longitudinal axis710.

Various electrical devices may be coupled to the outlets 210 of theelectrical signal distribution systems 200 a, 200 b, 200 c. For example,consoles 212 a on armrests 720 of the seats 700 may be electricallycoupled to the electrical signal distribution system 200 a. The consoles212 a may be or include a display, such as a monitor, touchscreen,and/or the like. Optionally, the consoles 212 a may be mounted to rearsurfaces of seats. The PSUs 708 and stowbin latches 212 b may beelectrically coupled to the electrical signal distribution system 200 b.Accent lighting assemblies 212 and speakers 214 may be electricallycoupled to the electrical signal distribution system 200 c. Further,lighting assemblies 212 d may be electrically coupled to the electricaldistribution system 200 b.

Also, microphones 212 e may be electrically coupled to the electricaldistribution system 200 b. The microphones 212e may be locatedthroughout the interior cabin 702, and allow a flight attendant tobroadcast messages during a flight.

The electrical signal distributions systems 200 a-c replace wiring andbundles traditionally used to connect electrical devices to power anddata sources. Regularly-spaced outlets 210 on the PCBs 208 allow forquick and easy connection to various electrical devices throughout theinterior cabin 702.

FIG. 13 illustrates a flow chart of a method of electrically couplingelectrical devices to an electrical signal distribution system within aninterior cabin of a vehicle, according to an embodiment of the presentdisclosure. The method begins at 800, in which one or more electricalsignal distributions are mounted to one or more structural componentswithin the interior cabin of the vehicle.

At 802, the electrical signal distribution system(s) is electricallyconnected to one or more power supplies onboard the vehicle. At 804, theelectrical signal distribution system is communicatively coupled to oneor more master control units onboard the vehicle. Optionally, the methodmay not include 804.

At 806, one or more electrical devices within the interior cabin areelectrically coupled to the electrical signal distribution system. Then,at 808, electrical signals may be provided to the electrical devicesthrough the electrical signal distribution system(s).

As described above, embodiments of the present disclosure provideelectrical signal distribution systems that reduce the need for bulkywire bundles within an interior cabin of a vehicle. The electricalsignal distribution systems provide a plurality of outlets that areconfigured to electrically connect to electrical devices within theinterior cabin. The outlets may be regularly spaced on a PCB. Aninstaller is able to readily determine the location of the outlets andcouple electrical devices thereto. Embodiments of the present disclosuregreatly reduce the time, labor, and effort of electrically connectingelectrical devices to data and/or power sources onboard a vehicle. Theelectrical signal distribution systems may be pre-attached to structuralcomponents within an interior cabin, in contrast to prior systems, inwhich particular controllers and power sources needed to be located andcoupled to electrical devices.

While various spatial and directional terms, such as top, bottom, lower,mid, lateral, horizontal, vertical, front and the like may be used todescribe embodiments of the present disclosure, it is understood thatsuch terms are merely used with respect to the orientations shown in thedrawings. The orientations may be inverted, rotated, or otherwisechanged, such that an upper portion is a lower portion, and vice versa,horizontal becomes vertical, and the like.

As used herein, a structure, limitation, or element that is “configuredto” perform a task or operation is particularly structurally formed,constructed, or adapted in a manner corresponding to the task oroperation. For purposes of clarity and the avoidance of doubt, an objectthat is merely capable of being modified to perform the task oroperation is not “configured to” perform the task or operation as usedherein.

It is to be understood that the above description is intended to beillustrative, and not restrictive. For example, the above-describedembodiments (and/or aspects thereof) may be used in combination witheach other. In addition, many modifications may be made to adapt aparticular situation or material to the teachings of the variousembodiments of the disclosure without departing from their scope. Whilethe dimensions and types of materials described herein are intended todefine the parameters of the various embodiments of the disclosure, theembodiments are by no means limiting and are exemplary embodiments. Manyother embodiments will be apparent to those of skill in the art uponreviewing the above description. The scope of the various embodiments ofthe disclosure should, therefore, be determined with reference to theappended claims, along with the full scope of equivalents to which suchclaims are entitled. In the appended claims, the terms “including” and“in which” are used as the plain-English equivalents of the respectiveterms “comprising” and “wherein.” Moreover, the terms “first,” “second,”and “third,” etc. are used merely as labels, and are not intended toimpose numerical requirements on their objects. Further, the limitationsof the following claims are not written in means-plus-function formatand are not intended to be interpreted based on 35 U.S.C. § 112(f),unless and until such claim limitations expressly use the phrase “meansfor” followed by a statement of function void of further structure.

This written description uses examples to disclose the variousembodiments of the disclosure, including the best mode, and also toenable any person skilled in the art to practice the various embodimentsof the disclosure, including making and using any devices or systems andperforming any incorporated methods. The patentable scope of the variousembodiments of the disclosure is defined by the claims, and may includeother examples that occur to those skilled in the art. Such otherexamples are intended to be within the scope of the claims if theexamples have structural elements that do not differ from the literallanguage of the claims, or if the examples include equivalent structuralelements with insubstantial differences from the literal language of theclaims.

What is claimed is:
 1. A vehicle comprising: an interior cabin includinga plurality of structural components; a plurality of electrical deviceswithin the interior cabin; a power supply; and an electrical signaldistribution system mounted to at least one of the plurality ofstructural components and electrically coupled to the power supply andthe plurality of electrical devices, wherein the electrical signaldistribution system comprises: a printed circuit board (PCB); and aplurality of outlets coupled to the PCB, wherein the plurality ofoutlets electrically couple to the plurality of electrical devices,wherein the electrical signal distribution system provides electricalsignals to the plurality of electrical devices.
 2. The vehicle of claim1, wherein the PCB is a multi-layer PCB comprising a power layer coupledto at least one data layer.
 3. The vehicle of claim 2, wherein the PCBfurther comprises first and second ground layers, wherein the at leastone data layer is sandwiched between the first and second ground layers.4. The vehicle of claim 1, wherein at least one of the plurality ofoutlets comprises an electrical connector mounted on the PCB.
 5. Thevehicle of claim 1, wherein at least one of the plurality of structuralcomponents comprises a portion of a stowage bin assembly.
 6. The vehicleof claim 1, wherein at least one of the plurality of structuralcomponents comprises a passenger service unit (PSU) trough.
 7. Thevehicle of claim 1, wherein at least one of the plurality of structuralcomponents comprises a floor member of the interior cabin.
 8. Thevehicle of claim 1, wherein at least one of the plurality of structuralcomponents comprises a ceiling of the interior cabin.
 9. The vehicle ofclaim 1, wherein at least one of the plurality of structural componentscomprises a wall member of the interior cabin.
 10. The vehicle of claim1, wherein the electrical signal distribution system extends linearlyalong at least a portion of a length of the interior cabin.
 11. Thevehicle of claim 1, wherein the PCB is parallel with a centrallongitudinal axis of the interior cabin.
 12. The vehicle of claim 1,wherein the outlets are spaced over a length of the PCB.
 13. The vehicleof claim 1, wherein the electrical signals comprise one or both of powersignals and data signals.
 14. The vehicle of claim 1, further comprisinga master control unit in communication with the plurality of electricaldevices.
 15. The vehicle of claim 14, wherein each of the plurality ofelectrical devices comprises a control unit, wherein the master controlunit is in communication with the control unit of each of the pluralityof electrical devices, and wherein the master control unit automaticallydetermines a location of the each of the plurality of electrical devicesin response to each of the plurality of electrical devices electricallycoupling to the electrical signal distribution system.
 16. The vehicleof claim 1, wherein at least two of the plurality of outlets includedifferent keys or coding that are associated with different types ofelectrical devices.
 17. The vehicle of claim 1, wherein at least one ofthe plurality of electrical devices comprises a passenger service unit(PSU) including an overhead light and an oxygen supply system.
 18. Thevehicle of claim 1, wherein at least one of the plurality of electricaldevices comprises a lighting assembly.
 19. The vehicle of claim 1,wherein at least one of the plurality of electrical devices comprises aspeaker.
 20. The vehicle of claim 1, wherein at least one of theplurality of electrical devices comprises a microphone.
 21. The vehicleof claim 1, wherein at least one of the plurality of electrical devicescomprises a display.
 22. The vehicle of claim 1, wherein at least one ofthe plurality of electrical devices comprises an electronic latch of astowage bin assembly.
 23. A method of providing electrical signals to aplurality of electrical devices within an interior cabin of a vehicle,the method comprising: providing a printed circuit board (PCB) of anelectrical signal distribution system; coupling a plurality of outletsto the PCB; mounting the electrical signal distribution system to atleast one of a plurality of structural components within the interiorcabin of the vehicle; electrically coupling the electrical signaldistribution system to a power supply within the interior cabin of thevehicle; electrically coupling the plurality of outlets to the pluralityof electrical devices; and providing the electrical signals to theplurality of electrical devices through the electrical signaldistribution system.
 24. The method of claim 23, wherein the providingthe PCB comprises providing a multi-layer PCB including a power layercoupled to at least one data layer.
 25. The method of claim 24, whereinthe providing the PCB further comprises sandwiching the at least onedata layer between first and second ground layers.
 26. The method ofclaim 23, wherein the mounting comprises mounting the electrical signaldistribution system to one or more of a portion of a stowage binassembly, a passenger service unit (PSU) trough, a floor member of theinterior cabin, a ceiling of the interior cabin, or a wall member of theinterior cabin.
 27. The method of claim 23, wherein the mountingcomprises mounting the electrical signal distribution system along atleast a portion of a length of the interior cabin such that the PCB isparallel with a central longitudinal axis of the interior cabin.
 28. Themethod of claim 23, wherein the providing a plurality of outletscomprises regularly spacing the plurality of outlets over a length ofthe PCB.
 29. The method of claim 23, wherein the electrical signalscomprise one or both of power signals and data signals.
 30. The methodof claim 23, further comprising communicatively coupling a mastercontrol unit with the plurality of electrical devices.
 31. The method ofclaim 30, further comprising: providing each of the plurality ofelectrical devices with a control unit, wherein the communicativelycoupling comprises communicatively coupling the master control unit withthe control unit of each of the plurality of electrical devices; andautomatically determining, by the master control unit, a location of theeach of the plurality of electrical devices in response to each of theplurality of electrical devices electrically coupling to the electricalsignal distribution system.
 32. The method of claim 23, furthercomprising providing different keys or coding on at least two of theplurality of outlets to indicate the type of electrical devices that areconfigured to couple thereto.
 33. The method of claim 23, wherein theplurality of electrical devices comprises at least one of a passengerservice unit including an overhead light and an oxygen supply system, alighting assembly, a speaker, a microphone, a display, a sensor, or anelectronic latch of a stowage bin assembly.
 34. A vehicle comprising: aninterior cabin including a plurality of structural components; aplurality of electrical devices within the interior cabin, wherein eachof the plurality of electrical devices comprises a control unit; a powersupply; and an electrical signal distribution system mounted to at leastone of the plurality of structural components and electrically coupledto the power supply and the plurality of electrical devices, wherein theelectrical signal distribution system extends along at least a portionof a length of the interior cabin, wherein the electrical signaldistribution system comprises: a printed circuit board (PCB), whereinthe PCB is parallel with a central longitudinal axis of the interiorcabin, wherein the PCB is a multi-layer PCB comprising a power layercoupled to at least one data layer, and first and second ground layers,wherein the at least one data layer is sandwiched between the first andsecond ground layers; and a plurality of outlets coupled to the PCB,wherein at least one of the plurality of outlets comprises an electricalconnector mounted on the PCB, wherein the outlets are regularly spacedover a length of the PCB, wherein the plurality of outlets electricallycouple to the plurality of electrical devices, wherein the electricalsignal distribution system provides electrical signals to the pluralityof electrical devices, wherein the electrical signals include powersignals and data signals, wherein at least two of the plurality ofoutlets include different keys or coding that are associated withdifferent types of electrical devices; and a master control unit incommunication with the plurality of electrical devices, wherein themaster control unit is in communication with the control unit of each ofthe plurality of electrical devices, and wherein the master control unitautomatically determines a location of the each of the plurality ofelectrical devices in response to each of the plurality of electricaldevices electrically coupling to the electrical signal distributionsystem.
 35. The vehicle of claim 34, wherein the plurality of electricaldevices comprises at least passenger service unit including an overheadlight and an oxygen supply system, at least one lighting assembly, atleast one speaker, at least one microphone, at least one display, atleast one sensor, and at least one electronic latch of a stowage binassembly.
 36. A method of manufacturing an interior cabin of a vehicle,the method comprising: providing a printed circuit board (PCB) of anelectrical signal distribution system; coupling a plurality of outletsto the PCB; mounting the electrical signal distribution system to atleast one of a plurality of structural components within the interiorcabin of the vehicle; electrically coupling the electrical signaldistribution system to a power supply within the interior cabin of thevehicle; electrically coupling the plurality of outlets to the pluralityof electrical devices; electrically uncoupling at least a portion of theplurality of electrical devices from the plurality of outlets;reconfiguring the at least a portion of the plurality of electricaldevices within the interior cabin; and electrically coupling the atleast a portion of the electrical devices to different ones of theplurality of outlets within the interior cabin.
 37. The method of claim36, wherein the providing the PCB comprises providing a multi-layer PCBincluding a power layer coupled to at least one data layer.
 38. Themethod of claim 36, wherein the providing the PCB further comprisessandwiching the at least one data layer between first and second groundlayers.
 39. The method of claim 36, wherein the mounting comprisesmounting the electrical signal distribution system to one or more of aportion of a stowage bin assembly, a passenger service unit (PSU)trough, a floor member of the interior cabin, a ceiling of the interiorcabin, or a wall member of the interior cabin.
 40. The method of claim36, wherein the mounting comprises mounting the electrical signaldistribution system along at least a portion of a length of the interiorcabin such that the PCB is parallel with a central longitudinal axis ofthe interior cabin.
 41. The method of claim 36, further comprisingcommunicatively coupling a master control unit with the plurality ofelectrical devices.
 42. The method of claim 36, further comprising:providing each of the plurality of electrical devices with a controlunit, wherein the communicatively coupling comprises communicativelycoupling the master control unit with the control unit of each of theplurality of electrical devices; and automatically determining, by themaster control unit, a location of the each of the plurality ofelectrical devices in response to each of the plurality of electricaldevices electrically coupling to the electrical signal distributionsystem.
 43. The method of claim 36, further comprising providingdifferent keys or coding on at least two of the plurality of outlets toindicate the type of electrical devices that are configured to couplethereto.
 44. The method of claim 36, wherein the plurality of electricaldevices comprises at least one of a passenger service unit including anoverhead light and an oxygen supply system, a lighting assembly, aspeaker, a microphone, a display, a sensor, or an electronic latch of astowage bin assembly.